Beauniq 14k Yellow Gold Diamond Cut Crescent Moon and Star Pendant Necklace - 13" 15" 16" 18" 20" 22" Unsure what length chain to buy? 18 inches is the standard length and will look great on most people To purchase the pendant by itself (without a chain), choose the "0.0 inches" length This pendant necklace is made of solid 14k gold (not plated or filled) and stamped "14k". The necklace is a thin, delicate and feminine rope chain with a spring ring clasp. The weight of the pendant is 0.7g, the 18in necklace weighs 1.4g, the pendant measures 11mm (0.43 in) x 15mm (0.59 in), the length of the bale is 6mm (0.24 in), the chain is 0.85mm thick and either 13, 15, 16, 18, 20, or 22 inches long.